College student Souji Miyamoto ends up getting transported to another world after test-cutting with a replica sword he bought on impulse. Because he arrives right in the middle of a hero-summoning ritual in a certain kingdom, Souji is mistaken for the Hero. By a strange turn of events, the princess discovers that hes actually a fake. Holding the fact over him that if others find out hes an impostor hell be executed, Souji is forced to set out on a journey to defeat the Demon King. However, every member of the Heros party turns out to be seriously eccentriceach with their own complications!? With his imitation-turned-cursed sword in hand, the journey of a fake hero starts now!
